[Talk-in] Coastline changes at different zoom with yahoo map

[Shajeer Mohammed]

can you let me know at what zoom level did u find the yahoo map and gps 
tracks coincide? can you try with zoom 13 and zoom 15


Regards
Shajeer



--------------------------------------------------
From: "Kenneth Gonsalves" <lawgon at au-kbc.org>
Sent: Saturday, 23 August 2008 08:46
To: <talk-in at openstreetmap.org>
Subject: Re: [Talk-in] Coastline changes at different zoom with yahoo map

> you need to check it with gps tracks - for example, the coastline
> around Mangalore is accurate, but around Mumbai is offset. I have
> found that both in Mangalore and Mumbai the gps tracks and the
> satellite image coincide
>
> On 22-Aug-08, at 10:22 PM, Shajeer Mohammed wrote:
>
>> Mikel
>>
>> Thanks, the coastlines are in are in accurate and I was trying to
>> fix a small area. The problem that is see is that the same
>> coastline when compared to yahoo satellite image, are shown at
>> different offsets.
>>
>>
>>
>> Regards
>> Shajeer
>>
>>
>>
>> From: Mikel Maron
>> Sent: Friday, 22 August 2008 21:43
>> To: talk-in at openstreetmap.org ; talk at openstreetmap.org
>> Subject: Re: [Talk-in] Coastline changes at different zoom with
>> yahoo map
>>
>> There's possibly inaccuracies  in the original coastlines.
>> I'd suggest reading about how coastlines are handled (http://
>> wiki.openstreetmap.org/index.php/Coastline)
>> and then making an inquiry to the main dev at openstreetmap.org list.
>>
>> -Mikel
>>
>>
>> ----- Original Message ----
>> From: Shajeer Mohammed <shajeer at hotmail.com>
>> To: talk-in at openstreetmap.org; talk at openstreetmap.org
>> Sent: Thursday, August 21, 2008 10:50:03 PM
>> Subject: [Talk-in] Coastline changes at different zoom with yahoo map
>>
>> I haven noticed the same coastline when compared at different zoom
>> levels
>> are having an offset when compared to the yahoo satellite maps.
>>
>>
>> http://www.openstreetmap.org/edit?lat=11.85657&lon=75.35504&zoom=15 -
>> Modified coastline which shows the city roads and coastlines aligned
>> http://www.openstreetmap.org/edit?
>> lat=11.85657&lon=75.35504&zoom=13- Orginal
>> PSG coastline my changes are shown with an offeset
>>
>> Has anyone else noticed this? Or am I doing something wrong here?
>>
>>
>> Regards
>> Shajeer
>>
>>
>>
>>
>>
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>
> -- 
> regards
>
> Kenneth Gonsalves
> Associate, NRC-FOSS
> lawgon at au-kbc.org
> http://nrcfosshelpline.in/code/
>
>
>
>
>
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